A couple of things you say make me pretty sure you have bought a scam version of Limewire, and the only consollation is that you are not alone.
This thread contans a handful of posts on the subject
http://www.gnutellaforums.com/showth...threadid=28751
Limewire is availaible free at
www.limewire.com or Pro costs US$18.88
It would be interesting to know WHO is sending you "plenty of e-mail" Limewire only ever sends 2 e-mails to new cpro customers.
You have been a victim of fraud, and I advise you to cancell your credit card, as the scammers have your details, and to try to get your money back either from the seller or your CC's fraud protection.